SACRAMENTO (CBS13) — Don’t get caught off guard! The long closure of Highway 99 is in place through early Wednesday morning.

Here’s a breakdown of the closure – and how to get around it.

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When
The closure began on Friday at 8 p.m, according to Caltrans. The highway isn’t scheduled to reopen until Wednesday, June 16 at 4 a.m.

Where
Highway 99 between 47th Avenue and the Highway 50 connector. Both northbound and southbound lanes are fully blocked.

The work means that the following ramps are also closed:

The on-ramp from 16th Street to eastbound US-50
The on-ramp from 29th Street/H Street to westbound Business 80/Capital City Freeway
The on-ramp from 29th Street/N Street to westbound Business 80/Capital City Freeway
The on-ramp from 29th Street/T Street to southbound SR-99
The on-ramp from Broadway to southbound SR-99
The off-ramp from southbound SR-99 to 12th Street
The off-ramp from northbound SR-99 to 12th Street
The on-ramp from 14th Avenue/30th Street to southbound SR-99
The on-ramp (slip) from Fruitridge Road to northbound SR-99
The on-ramp (loop) from Fruitridge Road to northbound SR-99
The on-ramp (slip) from East 47th Avenue to northbound SR-99
The on-ramp (loop) from West 47th Avenue to northbound SR-99

Why
Crews will be replacing the aging bridge deck on the SR-99 at 21st Avenue. Traffic shifts and lane reductions would have lasted six months, so Caltrans says they decided on a 99-hour closure to finish the work as quickly as possible.

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How To Get Around It
Drivers will have to use Interstate 5 or surface streets. Of course, the earlier you can switch over to I-5, the better.

Drivers heading up Highway 99 from San Joaquin County should use the Highway 4/Crosstown Freeway to switch over to I-5, or use Highway 12 to northbound I-5.

Expect heavier than usual traffic on surface streets through south Sacramento.

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Sacramento RT is also offering free light rail service for the duration of the closure. Riders will just need to show a flyer, which can be found at this link: https://www.sacrt.com/apps/wp-content/uploads/FixSac99-Free-Ride-Flyer.pdf.